Knowshon Moreno to IR, Lamar Miller back to feature role

Knowshon Moreno's rough first year with the Miami Dolphins will end on injured reserve. The team announced the running back is out for the rest of 2014 season after he suffered a torn ACL in his knee in Sunday's Week 6 home loss to Green Bay.

Moreno had trouble getting on the field to practice in the offseason following a knee scope. He had returned against the Packers after already missing two games with an elbow injury.

Given the fact the former Denver Broncos' workhorse signed a one-year contract with the Dolphins as a free agent and turns 28 next year, Moreno is facing an even drier market for his services in 2015.

Moreno's likely only season with Miami ends with just 31 carries for 148 yards and a touchdown.

It also means the Dolphins no longer will have a committee backfield with a lot more of Lamar Miller in a feature role.

Miller has been very productive in complementing and spelling Moreno so far, rushing for 330 yards on 63 carries, a healthy 5.2 yard-per-carry average. He also has caught 15 passes for 93 yards and scored four total touchdowns. The Dolphins also have been committed more to getting Miller the ball in open field under first-year offensive coordinator Bill Lazor.